(C) 1000,
An hour = 60 minutes,
60/4= 15 minutes
The tennis player uses 800 calories, so 800/4 =200 calories
1 hour 15 minutes= 60 minutes + 15 min.
= 800 cal. + 200 cal.
=1000calories
16/40 x 100 =40
so the answer is 40
Any prism has a volume equal to the base area x height. Your base area is that of a pentagon, which you can easily find in google typing 'area pentagon', which has a nice expression with square roots that I can't/don't need to write here.
Answer: -5x^2 - 39x + 8
Step-by-step explanation: Simplify the expression.
Hope this helps you out! ☺
-Karleif-